Master Chemistry with Fun Quizzes & Brain Teasers!

Plz help! The best answer will be marked as brainliest!Make a funny sentence for flammability and compounds for MagnesiumHere is an example for Mercury, it HAS to for MagnesiumI love to travel but I do corrode aluminum so we wont be flying off on adventures in airplanes planes anytime soon
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pls help ill mark as brainliest :)Q7. Pb + O2 PbO2Is this combustion, single replacement, double replacement, synthesis, or decomposition
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pls help ill mark as brainliest Q8. Na2CO3 Na2O + CO2is this combustion, synthesis, single replacement, double replacement, or decomposition ?
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which force is a noncontact force
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NEED HELP PLEASEPart A:In your own words, describe the process of a physical change.Part B:What is the difference between a physical change and a chemical change? Give an example of each.
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what is the covalent bond for Hydrogen + Chlorine (HCI)
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Please help anyone??
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Convert12 x 1025 kg/mL to fg/cm3
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Which of the following is most likely NOT a chemical reaction?(A)A white powder and a clear liquid mix and the beaker holding the mixture gets cool to the touch(B) A white solid and a clear liquid mix and produce a bright orange, bubbling substance(C)A pan containing a clear liquid is place on a hot stove and begins to bubble after a few minutes.(D)A blue liquid and a green solid mix and produce a purple paste
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Sabrina was asked by a classmate why she would place hydrogen in the first column of the periodic table. Which of the following reasons could she give as a response? I. Hydrogen combines with chlorine in the same atomic ratio as sodium. II. Hydrogen is a gas at room temperature. III. Hydrogen forms diatomic molecules.
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pls help ill mark as brainliest :)Q9. NH4OH + HBr H2O + NH4Bris this combustion, synthesis, single reaction, double reaction, decomposition ?
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Heat is most closely related to which kind of energy? O nuclear Oelectrical thermal chemical
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OMG plz help me out with this!!What are 3 differences between animal cells and plant cells?What do the cell wall and chloroplasts do for the plant cell?What are 2 things that animal cells and plant cells have in common?Thank you!
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What is the main difference between gases and liquids
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Selena breaks a piece off the end of a stick she found and notes thats a physical change has occurred which of the following properties of the remaining piece of the stick has changed
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Forces can be represented by _____,called vectors, that show the direction of a force.
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Calculate 6890/1230000 and conclude using the correct scientific figure.
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The chemical combination of two or more different atoms in fixed amounts is called a(n) A. element B. mixture. C. orbit D. compound.
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Explain how this chemical equation demonstrates the Law of Conservation of Matter (Mass).
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which of the data sets qualitative data?
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3. Explain the gravitational force earth has with one other object in the solarsystem.I
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Two elements in the same period have the same number of _____ _____ in their electron clouds.
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3. How can the force of gravity affect weight?
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Which will most likely happen to her soup?Carlotta adds too much salt to her soup. She recalls thatevaporation can be used to separate salt from salt water,so she plans to leave the soup on the stove on low heatuntil the soup is less salty.O The soup will become saltier because evaporationremoves the water and leaves the salt behind.O The procedure will make the soup less salty becausethe salt will evaporate and leave the pot.The saltiness of the soup will not change becauseboth salt and water will evaporate.O The heat will cause the soup to become more saltybecause more salt dissolves in hotter water.
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